MS109 REG
Racing fuel drum
MS109 REG
MS109 REG
Racing fuel drum
MS109 REG

MS109 REG

$223.00
Size 19 Litres
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Australia’s top selling drag racing fuel. A highly oxygenated Unleaded fuel that produces more power and consistency than any other homologated unleaded fuel. It has powered more sportsman wins than any other racing fuel in Australia.

Recommended for applications with up to 25 lbs of boost and naturally aspirated engines with compression ratios up to 15:1.

MS109 Reg works extremely well in a wide array of applications, including circuit, drift and motorcycle.

 

This Item cannot be purchased online. Please call our sales team on 02 9723 4233 to purchase direct, or Find A Reseller

This product does not comply with the Australian Petrol Standard and requires a racing license to be presented at the time of purchase.

This fuel contains MTBE and cannot be used in fresh water ways, or fresh water lakes.

SAFETY DATA SHEET

RON octane
111
Oxygen content
9.32%
Specific gravity
0.720
SPECIFICATIONS
GASOLINE Unleaded
Motor octane (MON) 100
(R+M)/2 105.5
Reid vapour pressure 6.03 psi
Stoich. A/F ratio 13.36:1
Colour Colorless
Drag Racing
Excellent
Circuit
Excellent
Bike
Excellent
Nitrous
Capable
MX / SX
Not recommended
Rally / Off Road
Very good
Boosted / Turbo
Capable
Marine
Not allowed
tuning INFO
Oxygen content
9.32%
HIGHLY OXYGENATED FUEL
tuning info
Highly Oxygenated Fuel Requires an Increase in Fuel Volume.
Increase jet size or injector flow.
What is Oxygen Content?
Oxygen content refers to the amount of oxygen within the fuel itself. Higher oxygen content allows more complete combustion, increasing power potential while requiring additional fuel delivery to prevent lean conditions.
STOICHIOMETRIC AFR
13.36:1
98 RON Petrol
14.7
MS109
13.36
Requires More Fuel Volume Than Standard Petrol
Tuning Info
Lower stoichiometric AFR requires increased fuel delivery.
Do not rely on standard petrol AFR targets.
Use lambda for accurate tuning across different fuels.
What is Stoichiometric Air-Fuel Ratio?
The stoichiometric air-fuel ratio defines the ideal mixture for complete combustion. Different fuels require different ratios, meaning fuel delivery must be adjusted during tuning to maintain correct combustion and performance.
SPECIFIC GRAVITY
0.720
0.70 Specific Gravity Comparison 0.80
MS109 0.720
Pump 98 0.750
More Fuel Volume Required
MS109 is less dense than pump 98, so it must be run richer.
Tuning Info
Specific gravity affects how much fuel mass is delivered.
Adjust fueling when switching fuels.
What is Specific Gravity?
Specific gravity measures the density of the fuel relative to water. It determines how much fuel mass is delivered for a given volume. Lower density fuels deliver less fuel mass per volume, which can cause a lean condition if not corrected.
Reid Vapour Pressure
6.03 PSI
MODERATE FUEL VOLATILITY
tuning info
Balanced vapour pressure supports consistent fuel behaviour.
Provides stable delivery across varying temperatures.
Always verify calibration under real operating conditions.
What is Reid Vapour Pressure?

RVP Measures the volatility of a fuel and how readily it evaporates at a given temperature.


In forced induction applications, a lower RVP resists vaporisation under boost, reducing the risk of vapour lock. Naturally aspirated engines benefit from a higher RVP, where easier vapourisation improves atomisation and throttle response.

Disclaimer

All specifications and tuning guidance are provided for informational purposes only and should not be relied upon as definitive tuning instructions. VP Racing Fuels assumes no liability for engine damage, failed tunes, or performance outcomes. Users are solely responsible for correct fuel selection, tuning, and application.

MS109 REG POWERING PRO STOCK

Motorsport 109 REG isn’t just making power, it’s fuelling record-breaking runs. Trusted by Australia’s top Pro Stock teams, it’s helped drive new ET and speed records

STILL NOT SURE WHICH FUEL IS RIGHT FOR YOU?

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